Find suppliers for this alloyC70250
Chemical Composition
Element
Cu(1,2)PbZnFeNi(3)MgMnSi
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Ni value includes Co.
Min (%)2.20.050.25
Max (%)Rem0.051.00.204.20.300.101.2
Mechanical Properties*
Form
Temper
Temper Code
Tensile Strength
(ksi)
YS-0.2% Offset
Elongation
(%)
StripMill-hardened Temper, TM - 3/4 HMTM03100   Min for Standard
125   Max for Standard
95   Typ
5   Typ
Mill-hardened Temper, TM - 1/2 HardTM0090   Min for Standard
110   Max for Standard
65   Min for Standard
10   Typ
TM0295   Min for Standard
120   Max for Standard
83   Min for Standard
7   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
(1) TM03 Temper
(2) TM00 Temper
(3) TM02 Temper
Melting Point - Liquidus°F2003
Melting Point - Solidus°F1967
Densitylb/cu in. at 68°F0.318
Specific Gravity8.82
Electrical Conductivity% IACS at 68°F35(1)
Electrical Conductivity% IACS at 68°F40(2)
Electrical Conductivity% IACS at 68°F40(3)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F97.5
Modulus of Elasticity in Tensionksi19000
Fabrication Properties

No fabrication properties for this alloy

Fabrication Process Properties

No fabrication process properties for this alloy

Thermal Characteristics

No thermal characteristics for this alloy

Typical uses
Product Category Product Reason Category Reason
ElectricalAutomotive Electrical ConnectorsConductivity (Electrical)Electrical Conductivity
Automotive Electrical ConnectorsMechanical PropertiesHigh Strength
Automotive Electrical ConnectorsThermal PropertiesHigh Temperature Capability
Automotive Electronic ConnectorsConductivity (Electrical)Electrical Conductivity
Automotive Electronic ConnectorsMechanical PropertiesHigh Strength
Automotive Electronic ConnectorsThermal PropertiesHigh Temperature Capability
Contact springsConductivity (Electrical)Electrical Conductivity
Contact springsConductivity (Thermal)Thermal Conductivity
Contact springsCorrosion ResistanceCorrosion Resistance
Contact springsForming CharacteristicsFormability
Contact springsMechanical PropertiesHigh Strength
Contact springsThermal PropertiesResistance to Stress Relaxation
Electronic ConnectorsConductivity (Electrical)Electrical Conductivity
Electronic ConnectorsMechanical PropertiesHigh Strength
Electronic ConnectorsThermal PropertiesHigh Temperature Capability
Lead FramesConductivity (Electrical)Electrical Conductivity
Lead FramesConductivity (Thermal)Thermal Conductivity
Lead FramesCorrosion ResistanceCorrosion Resistance
Lead FramesForming CharacteristicsFormability
Lead FramesMechanical PropertiesHigh Strength
Applicable Specifications
Form Specific Sub-Form System Standard Description
Sheet & StripASTMB422/B422MCOPPER-ALUMINUM-SILICON-COBALT ALLOY AND COPPER-NICKEL-ALUMINUM-SILICON ALLOY SHEET AND STRIP
StripElectric Connector & Spring ContactASTMB888/B88MCOPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
Corrosion Properties

No information available.